/*!
 * \file serial/impl/windows.h
 * \author  William Woodall <wjwwood@gmail.com>
 * \author  John Harrison <ash@greaterthaninfinity.com>
 * \version 0.1
 *
 * \section LICENSE
 *
 * The MIT License
 *
 * Copyright (c) 2012 William Woodall, John Harrison
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *
 * \section DESCRIPTION
 *
 * This provides a windows implementation of the Serial class interface.
 *
 */

#if defined(_WIN32)

#ifndef SERIAL_IMPL_WINDOWS_H
#define SERIAL_IMPL_WINDOWS_H

#include "../serial.h"
#include "windows.h"

namespace serial
{

	using std::invalid_argument;
	using std::string;

	using serial::IOException;
	using serial::SerialException;

	class serial::Serial::SerialImpl
	{
public:
		SerialImpl(const string &port, unsigned long baudrate, bytesize_t bytesize, parity_t parity, stopbits_t stopbits,
			   flowcontrol_t flowcontrol);

		virtual ~SerialImpl();

		void open();

		void close();

		bool isOpen() const;

		size_t available();

		bool waitReadable(uint32_t timeout);

		void waitByteTimes(size_t count);

		size_t read(uint8_t *buf, size_t size = 1);

		size_t write(const uint8_t *data, size_t length);

		void flush();

		void flushInput();

		void flushOutput();

		void sendBreak(int duration);

		void setBreak(bool level);

		void setRTS(bool level);

		void setDTR(bool level);

		bool waitForChange();

		bool getCTS();

		bool getDSR();

		bool getRI();

		bool getCD();

		void setPort(const string &port);

		string getPort() const;

		void setTimeout(Timeout &timeout);

		Timeout getTimeout() const;

		void setBaudrate(unsigned long baudrate);

		unsigned long getBaudrate() const;

		void setBytesize(bytesize_t bytesize);

		bytesize_t getBytesize() const;

		void setParity(parity_t parity);

		parity_t getParity() const;

		void setStopbits(stopbits_t stopbits);

		stopbits_t getStopbits() const;

		void setFlowcontrol(flowcontrol_t flowcontrol);

		flowcontrol_t getFlowcontrol() const;

		void readLock();

		void readUnlock();

		void writeLock();

		void writeUnlock();

protected:
		void reconfigurePort();

private:
		std::wstring port_; // Path to the file descriptor
		HANDLE fd_;

		bool is_open_;

		Timeout timeout_;	 // Timeout for read operations
		unsigned long baudrate_; // Baudrate

		parity_t parity_;	    // Parity
		bytesize_t bytesize_;	    // Size of the bytes
		stopbits_t stopbits_;	    // Stop Bits
		flowcontrol_t flowcontrol_; // Flow Control

		// Mutex used to lock the read functions
		HANDLE read_mutex;
		// Mutex used to lock the write functions
		HANDLE write_mutex;
	};

} // namespace serial

#endif // SERIAL_IMPL_WINDOWS_H

#endif // if defined(_WIN32)
